/*
- * Copyright (C) 2005-2006 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Licensed under the GPL v2. For licencing details see COPYING.
*/
-/** \file close_on_fork.c manage a list of fds that should be closed on fork */
+/** \file close_on_fork.c Manage a list of fds that should be closed on fork. */
#include "para.h"
#include "list.h"
#include "string.h"
static int initialized;
/**
- * describes an element of the close-on-fork list
+ * Describes an element of the close-on-fork list.
*
* \sa list.h
*/
struct close_on_fork {
- /** the file descriptor which should be closed after fork() */
+ /** The file descriptor which should be closed after fork(). */
int fd;
- /** the position in the close-on-fork list */
+ /** The position in the close-on-fork list. */
struct list_head node;
};
/**
- * add one file descriptor to the close-on-fork list
+ * Add one file descriptor to the close-on-fork list.
*
- * \param fd the file descriptor to add
+ * \param fd The file descriptor to add.
*/
void add_close_on_fork_list(int fd)
{
initialized = 1;
}
cof->fd = fd;
- list_add(&cof->node, &close_on_fork_list);
+ para_list_add(&cof->node, &close_on_fork_list);
}
-
/**
- * delete one file descriptor from the close-on-fork list
+ * Delete one file descriptor from the close-on-fork list.
*
- * \param fd the file descriptor to delete
+ * \param fd The file descriptor to delete.
*
* Noop if \a fd does not belong to the close-on-fork list.
*/
}
/**
- * call close(3) for each fd in the close-on-fork list
+ * Close all fds in the list and destroy all list entries.
+ *
+ * This function calls close(3) for each fd in the close-on-fork list
+ * and empties the list afterwards.
*/
void close_listed_fds(void)
{
- struct close_on_fork *cof;
+ struct close_on_fork *cof, *tmp;
if (!initialized)
return;
- list_for_each_entry(cof, &close_on_fork_list, node) {
+ list_for_each_entry_safe(cof, tmp, &close_on_fork_list, node) {
PARA_DEBUG_LOG("closing fd %d\n", cof->fd);
close(cof->fd);
+ list_del(&cof->node);
+ free(cof);
}
}